Værksted for ladcykler · Est. 2016

Cargo bikes,
built one at a time.

Lumen Cycles is a two-person workshop on Refshaleøen, Copenhagen. We design, braze and finish made-to-order cargo bikes — steel frames, marine-ply boxes, and a five-year promise.

312 bikes on the road 5-year frame warranty Free 500 km service

01 — The workshop

We build around thirty bicycles a year. Not because we can't build more — because each one is measured, brazed and finished for the person who will ride it.

Marie & Jonas · Founders
0Bikes built since 2016
0hHours in every frame
0yrFrame warranty
0Years on Refshaleøen

02 — The models

Three starting points.
Infinite variations.

Every Lumen begins as one of three platforms, then becomes entirely yours — geometry, colour, box layout and components are all chosen with you, for you.

The city one

Kompakt

A short-wheelbase hauler for tight bike lanes and basement storage. One child, the weekly shop, or a very relaxed dog.

  • Platform 60 cm
  • Payload 100 kg
  • Weight 24 kg
From€2,950
Configure
The classic

Longjohn Standard

The Copenhagen workhorse. Two wheels, an 85 cm box, and room for two children plus everything they insist on bringing.

  • Box 85 cm
  • Payload 120 kg
  • Weight 27 kg
From€3,450
Configure
The family bus

Trike Classic

Three wheels, a full metre of box, and rock-solid stability at standstill. Carries up to four children — or one piano, once.

  • Box 100 cm
  • Payload 150 kg
  • Weight 34 kg
From€3,980
Configure

03 — Configure

Build yours, roughly.

This is a sketch, not a checkout. The real decisions happen over coffee at the workshop — but this gives you an honest starting price.

Longjohn Standard · Forest green
Estimated total
€3,450
Deposit €690
or €96/mo × 36
Lead time 8–10 weeks
PlatformLongjohn Standard
Frame colourForest green
Options

Longjohn Standard · Forest green · No extras

20% deposit, fully refundable for 14 days. Final specification and price are confirmed together at the workshop before any tube is cut.

04 — The process

From first coffee
to first ride.

Conversation

Thirty minutes, in person or by phone. Kids, hills, parking, budget — we listen more than we talk, and we'll tell you honestly if a Lumen isn't right for you.

Free · 30 min

Fitting & drawing

We measure you, draw your frame in CAD, and agree every component and colour. You sign the drawing; we take a 20% deposit.

1–2 weeks

The build

Tubes are cut, mitred and fillet-brazed. Your box is glued, screwed and oiled. You get photos every Friday — most customers frame them.

6–10 weeks

Handover

A final fitting, a handling lesson in the courtyard, and your service book. The first 500 km service is on us, forever part of the deal.

One good morning

05 — The craft

Built like we have to
answer for it. Because we do.

Copenhagen is flat, salty and wet. We build for exactly that — and for the second owner, and the third.

Fillet-brazed chromoly

Double-butted steel tubes, brazed by hand at low heat. Lighter than lugged, kinder to the metal than TIG, and repairable for decades.

Marine-ply boxes

Nine-ply FSC birch, the same grade used in boat hulls. Glued, screwed, edge-sealed and oiled — it shrugs off a Danish winter.

A five-year promise

Five years on the frame, two on everything we bolt to it. If a braze ever fails, we re-braze it free — it hasn't happened yet.

Standard parts only

No proprietary anything. Shimano drivetrains, standard bearings, common spokes — any good shop on Earth can keep a Lumen rolling.

Electric, if you want it

A 250W mid-drive with a 500Wh battery, good for roughly 90 km. Integrated into the frame at build time — never strapped on after.

70-micron powder coat

Blasted, primed and powder-coated matte, twice the thickness of wet paint. Chips touch up invisibly with the bottle we include.

“If you maintain it, your grandchildren will fight over it.” — Jonas, head builder, after his third coffee

06 — Stories

312 bikes.
312 households, changed.

“Our Longjohn replaced a second car. Two years, 6,000 kilometres, one set of brake pads. Marie still calls to ask how the kids like the box.”

F
Freja LindqvistØsterbro · Longjohn Standard, 2023

“I test-rode three cargo bikes before Lumen. The others felt like appliances. This one felt like it had been waiting for me.”

M
Mikkel AndersenVesterbro · Kompakt, 2024

“Two kids, one dog, the Saturday market run. The Trike carries all of it, and Jonas re-brazed a fender mount for free when I crashed it into a bollard.”

S
Sara & Thomas HolmNørrebro · Trike Classic, 2022

07 — Questions

Asked often,
answered honestly.

Six to twelve weeks depending on platform and season. Spring is our busiest time — order in January and you'll be riding by Easter. We give you a firm date at deposit, and we've missed exactly two in nine years.

Fully, for 14 days after you pay it. After that we begin ordering your components, and the deposit becomes non-refundable — but transferable, if life changes and a friend wants your slot.

Yes. We crate and freight anywhere in the EU, typically €180–350 depending on distance. Roughly one in five Lumens lives abroad — there are three in Amsterdam that we know of, which feels like a compliment.

Five years on frame and fork, two years on parts and box, against anything that is our fault. Crashes, bollards and creative children are not covered — but bring it in anyway. We repair at cost, and the coffee is free.

Every Saturday, 10:00–14:00, all three platforms, no appointment needed. Bring the kids — the box is the thing they're supposed to test. We keep helmets, and the harbour loop behind the workshop is flat and car-free.

08 — Visit

Come see the sparks.
Literally, most Tuesdays.

LUMEN CYCLES REFSHALEVEJ 163A KØBENHAVNS HAVN

Workshop

Refshalevej 163A
1432 København K

Hours

Tue–Fri 9–17
Sat 10–14 · Sun & Mon closed

Contact

+45 33 55 16 40
hej@lumencycles.dk

Test rides

Every Saturday
No booking needed

Book a test ride

Tell us who you are and what you're curious about. We reply within one working day — usually faster.

No newsletter, no spam. We write back like humans, because we are two.

Tak — we've got it.

Marie or Jonas will write back within one working day to find a time. Looking forward to meeting you.